mnyegaard's Identifications

Sadly decreased Sunfish. Seen by local fisho the previous day floundering in shallow water, but the region is too dangerous to enter. Another fisho said he'd seen them washed up before. He'd lived here over 50 years.
Measured at 2.7m x 2.2m

From https://articles.listnr.com/news/giant-sunfish-washes-up-on-south-australian-beach/

"According to Ralph Foster, fish collection manager at the SA Museum, sunfish are known to bask in the sun’s rays at the ocean’s surface before diving hundreds of metres below to feed on jellyfish.

“You can tell it’s a bump-head sunfish rather than one of the other two types (Mola tecta, the Hoodwinker sunfish and Mola mola, the Ocean sunfish) because of the prominent chin you can see in the photo,” a spokesperson for the museum said."

Near wreck of SMS Dresden from submersible at approx 50 m depth. Note tail of sunfish has been bitten off and healed.
Photos are stills from video footage taken by John Shedwick. Sub pilot was Mauricio Fernandez. Dive operations run by pilot team on Seabourn Pursuit